<template>
    <div class="wrapper">
        <swiper :options="swiperOption" v-if="showSwiper">
            <swiper-slide v-for="item of list" :key='item.id'>
                <img class="swiper-img" :src="item.imgUrl" alt="">
            </swiper-slide>
            <div class="swiper-pagination"  slot="pagination"></div>
        </swiper>
    </div>
</template>
<script>
export default {
  name: 'HomeSwiper',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: '.swiper-pagination',
        loop: true
      }
    }
  },
  computed: {
    showSwiper () {
      return this.list.length
    }
  }
}
</script>
<style lang="stylus" scoped>
// 下面一行代码是为了样式可以穿透到子组件，不受scoped限制
.wrapper >>> .swiper-pagination-bullet-active
    background:#fff
.wrapper
    // 下面几行样式四为了解决网速较慢的时候页面加载图片的时候会出现抖动
    overflow:hidden
    width:100%
    height:0
    padding-bottom:31.25%
    background:#eee
    .swiper-img
        width:100%
</style>
